If you’re a group admin, you can choose to turn on membership approval for your group. This means admins or moderators will have to approve membership requests before someone can join the group.
To turn on membership approval:
- From your News Feed, click Groups in the left menu and select your group.
- Below your cover photo, click More then select Edit Group Settings.
- Next to Membership Approval, select Only admins and moderators.
- Click Save at the bottom.